<template>
  <div>
      <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card class="box-card">
      <!-- 搜索与添加区 -->
    <el-row :gutter="20">
      <el-col :span="8">
        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getUserList'>
        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
      </el-input>
      </el-col>
      <el-col :span="4">
        <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
      </el-col>
    </el-row>
    <!-- 用户列表区 -->
        <el-table :data="userlist" style="width: 100%" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column prop="username" label="姓名" width="180"></el-table-column>
          <el-table-column prop="role_name" label="角色" width="180"></el-table-column>
          <el-table-column prop="mobile" label="电话"></el-table-column>
          <el-table-column prop="email" label="邮箱"></el-table-column>
          <el-table-column prop="create_time" label="创建时间"></el-table-column>
          <el-table-column label="状态">
            <template slot-scope="scope">
              <!-- {{scope.row.mg_state}} -->
              <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="200">
            <template slot-scope="scope">
              <!-- {{scope.row.id}} -->
              <!-- 修改 -->
              <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
              <!-- 删除 -->
              <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeUSerById(scope.row.id)" ></el-button>
              <!-- 分配角色 -->
              <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                 <el-button size="mini" type="warning" icon="el-icon-setting" @click="setRole(scope.row)">
                 </el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%" @close='addDialogClose'>
        <!-- 内容区 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser" >确 定</el-button>
        </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="提示"
      :visible.sync="editDialogVisible"
      width="50%" @close='editDialogClose'>
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser()">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoledialogVisible"
      width="50%" @close='setRoleDialogClose'>
      <div>
        <p>当前用户： {{userInfo.username}} </p>
        <p>当前用户的角色： {{userInfo.role_name}} </p>
        <p>分配新角色：
            <el-select v-model="roleId" placeholder="请选择" ref="setRoleSelectRef">
                <el-option
                  v-for="item in roleslist"
                  :key="item.id"
                  :label="item.roleName"
                  :value="item.id">
                </el-option>
            </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoledialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRole">确 定</el-button>
      </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  name: 'users',
  data () {
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        // 合法邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }

    var checkMobile = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        // 合法邮箱
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }

    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户的表单数据的验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度在3-10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '用户名长度在6-15个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, message: '请输入合法邮箱', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, message: '请输入合法手机号', trigger: 'blur' }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改用户的表单数据的验证规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, message: '请输入合法邮箱', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, message: '请输入合法手机号', trigger: 'blur' }
        ]
      },
      // 控制分配权限对话框显示与隐藏
      setRoledialogVisible: false,
      // 当前用户信息
      userInfo: {},
      // 角色列表
      roleslist: [],
      // 角色id
      roleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange (newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 开关状态事件
    async userStateChanged (userInfo) {
      // console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success('更新状态成功')
    },
    // 监听关闭添加用户对话框
    addDialogClose () {
      this.$refs.addFormRef.resetFields()
    },
    // 添加用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error(res.meta.msg)
        }
        this.$message.success('添加用户成功')
        // 隐藏对话框
        this.addDialogVisible = false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 展示编辑对话框
    async showEditDialog (id) {
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改表单的重置操作
    editDialogClose () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户
    editUser () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`, { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户失败')
        }
        // 隐藏对话框
        this.editDialogVisible = false
        // 重新获取用户列表
        this.getUserList()
        this.$message.success('修改用户成功')
      })
    },

    // 删除用户
    async removeUSerById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认删除')
      const { data: res } = await this.$http.delete(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error('删除失败')
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 展示分配角色的对话框
    async setRole (userInfo) {
      this.userInfo = userInfo

      // 获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      // console.log(res)
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      this.roleslist = res.data

      this.setRoledialogVisible = true
    },
    // 保存新的角色
    async saveRole () {
      if (!this.roleId) {
        this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.roleId })
      // console.log(res)
      if (res.meta.status !== 200) return this.$message.error('分配角色失败')
      this.$message.success('分配角色成功')
      this.setRoledialogVisible = false
      this.getUserList()
    },
    // 监听 分配角色对话框关闭事件
    setRoleDialogClose () {
      this.userInfo = {}
      this.roleId = ''
    }

  }

}
</script>

<style lang="less" scoped>

</style>
